docs: def remove_cv(type_):
      """removes const and volatile from the type definition"""
  
      nake_type = remove_alias(type_)
      if not is_const(nake_type) and not is_volatile(nake_type):
          return type_
      result = nake_type
      if is_const(result):
          result = remove_const(result)
      if is_volatile(result):
          result = remove_volatile(result)
      if is_const(result):
          result = remove_const(result)
      return result